Regrounding boost sensor
#1
REINCARNATED
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Regrounding boost sensor
Re grounding the boost/atmospheric pressure sensor on my 87 N/A engine
I dont have a solid black wire... nor do i have a brown wire
I have Brown/white.. Brown/Yellow.. Black/Brown stripes.. and Brown/blue stripes
Which one do i reground? i was at discount auto today and couldnt remember which one it was. and i didnt want to fry my ECU. Also i am regrounding my ECU tomorrow morning. (To TRY and get rid of 3800 Hesitation) I'll let you guys know how it goes.
Think 10 Guage wire will be ok?
Thanks. Markus
I dont have a solid black wire... nor do i have a brown wire
I have Brown/white.. Brown/Yellow.. Black/Brown stripes.. and Brown/blue stripes
Which one do i reground? i was at discount auto today and couldnt remember which one it was. and i didnt want to fry my ECU. Also i am regrounding my ECU tomorrow morning. (To TRY and get rid of 3800 Hesitation) I'll let you guys know how it goes.
Think 10 Guage wire will be ok?
Thanks. Markus
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#9
REINCARNATED
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OK: Is there a diff from Boost sensor (shock tower) to atmospheric pressure sensor... i though they were the same thing.. i guessed wrong. anyway, i'm trying to reground the BOOST sensor on my N/A... located on the pass. front strut tower. i am currently looking thru the FSM (THanks dr0x) for the wireing... any input would be great too
thanks
- Markus
thanks
- Markus
#10
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Checked the FSM, and this site, and can't find which wire to ground on the boost sensor (located on pass. strut tower) i do not want to find my self buying a new ECU tomorrow.. any input would be great... Oh yea.
BUMP>> _marKus)
BUMP>> _marKus)
#14
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On a 86 it's a brown wire with a black stripe. Somewhere in 87, I think they changed it to a pure black wire.
Brown/black....ground
Brown/white.....5v ref voltage
Brown/red......output of the BOOST SENSOR
Black/white.... 12v input
The above only for series four.
The atmospheric pressure sensor is above and to the right of the passengers knees/feet.
A 18/20 gauge wire will do just fine for the Boost sensor.
Brown/black....ground
Brown/white.....5v ref voltage
Brown/red......output of the BOOST SENSOR
Black/white.... 12v input
The above only for series four.
The atmospheric pressure sensor is above and to the right of the passengers knees/feet.
A 18/20 gauge wire will do just fine for the Boost sensor.
#15
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well, the only wire that i have that resembles brown/black... is a solid black wire, with a brown stripe... i hope that's it. Otherwise there goes my ECU huh?
-Markus
-Markus
#16
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******Otherwise there goes my ECU huh?*******
Nope. Do any of the other wires compare with the list above???? Before I would ground the wire.....I'd get a meter out and see if the wire is grounded. Pull the plug. Get on it. Should read less than one, 1, ohm.
With the key on, the brown/red should read approx 5 volts. The black/white 12volts, the brown/red close to nothing (irrelevant voltage), and the brown/black less than one ohm when the meter is switched to ohms.
You might peel back the covering over the wires. Over time the colors fade a bit. I have a 86 and 87 and both have the colors described above and the fsm also states the same colors I gave earlier.
Nope. Do any of the other wires compare with the list above???? Before I would ground the wire.....I'd get a meter out and see if the wire is grounded. Pull the plug. Get on it. Should read less than one, 1, ohm.
With the key on, the brown/red should read approx 5 volts. The black/white 12volts, the brown/red close to nothing (irrelevant voltage), and the brown/black less than one ohm when the meter is switched to ohms.
You might peel back the covering over the wires. Over time the colors fade a bit. I have a 86 and 87 and both have the colors described above and the fsm also states the same colors I gave earlier.
Last edited by HAILERS; 05-04-03 at 03:47 PM.
#17
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Ok i am done regrounding.. the hesitaion is not nearly as bad as it was. But i am still getting it. I have regrounded ALOT of thing
Altenator bracket - Chassis
Negitive Batt. - Chassis
Upper Fuel Rail - Chassis
Exhaust y Pipe - Chassis
Boost sesnsor - Chassis (just today)
After all that.. anything i'm missing? The only one i havnt done is the ECU.. But i'm afraid to do that one... any insight or comments would be great.
-Markus
Altenator bracket - Chassis
Negitive Batt. - Chassis
Upper Fuel Rail - Chassis
Exhaust y Pipe - Chassis
Boost sesnsor - Chassis (just today)
After all that.. anything i'm missing? The only one i havnt done is the ECU.. But i'm afraid to do that one... any insight or comments would be great.
-Markus
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Yo,
Bump for the Series 5 guys. What color wire on my 1989 GTUs? Did some grounding yesterday, trying to get the boost sensor today.
I don't have a voltmeter...any help from those in the know is appreciated!
Arigato!
Kevin
1989 GTUs "Make my high speed miss go away!"
Bump for the Series 5 guys. What color wire on my 1989 GTUs? Did some grounding yesterday, trying to get the boost sensor today.
I don't have a voltmeter...any help from those in the know is appreciated!
Arigato!
Kevin
1989 GTUs "Make my high speed miss go away!"
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